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A comment on Japan tested a giant turbine that generates electricity using deep ocean current. Parent comment

Re:Japan tested a giant turbine that generates electricity u... by nradov on Saturday June 04, 2022 @05:12PM (#31625123)
The energy in tidal currents comes both from the moon orbiting the Earth, and from the Earth orbiting the sun. (Technically other heavenly bodies also have some effect, but it's negligible.)
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